Alert archive / North Carolina / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 4, NWS Blacksburg, VA

February 24, 2016Yadkin County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Feb 24, 2016, 12:51 PM EST for Yadkin County, North Carolina. It was in force for 24 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 24, 2016, 12:51 PM EST (17:51 UTC)
Expired
Feb 24, 2016, 1:15 PM EST
In force
24 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Yadkin County, NC

The radar

The Roanoke radar (KFCX), 100 km from the middle of the area, began a volume at 17:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Feb 24, 1:07 PM ESTTSTM WND DMG1 Nw Huntsville, NCTREES DOWN ON FARMINGTON ROAD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.9 hours before the alert went out and 55 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2016-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2016-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 703 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-286 J/kg
Mixed-layer LCL
406 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
703 m²/s²
0-3 km storm-relative helicity
750 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

As transmitted.

005 
WUUS51 KRNK 241751
SVRRNK
NCC197-241815-
/O.NEW.KRNK.SV.W.0004.160224T1751Z-160224T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1251 PM EST WED FEB 24 2016

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN YADKIN COUNTY IN NORTHWESTERN NORTH CAROLINA...

* UNTIL 115 PM EST

* AT 1247 PM EST...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  MOCKSVILLE...MOVING NORTHEAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  EAST BEND...
  SHACKTOWN...
  ENON...
  COURTNEY...
  AND HUNTSVILLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. FOR YOUR
SAFETY...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. STAY AWAY FROM WINDOWS.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS ANY REPORTS OF WIND DAMAGE...INCLUDING DOWNED TREES
OR LARGE LIMBS...TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE
AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS AND PICTURES CAN ALSO BE
SHARED ON THE NATIONAL WEATHER SERVICE BLACKSBURG FACEBOOK PAGE AND
ON TWITTER.

&&

LAT...LON 3605 8070 3626 8048 3626 8047 3622 8043
      3621 8045 3617 8044 3614 8044 3612 8046
      3612 8049 3611 8051 3608 8051 3605 8050
TIME...MOT...LOC 1747Z 229DEG 29KT 3596 8064 

HAIL...1.00IN
WIND...60MPH
 
$$

JH
2 follow-up statements
076 
WWUS51 KRNK 241801
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
101 PM EST WED FEB 24 2016

NCC197-241815-
/O.CON.KRNK.SV.W.0004.000000T0000Z-160224T1815Z/
YADKIN NC-
101 PM EST WED FEB 24 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EST
FOR
SOUTHEASTERN YADKIN COUNTY...

AT 101 PM EST...A SEVERE THUNDERSTORM WAS LOCATED NEAR HUNTSVILLE...
MOVING NORTHEAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
EAST BEND...
SHACKTOWN...
ENON...
AND HUNTSVILLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. FOR YOUR
SAFETY...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. STAY AWAY FROM WINDOWS.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS ANY REPORTS OF WIND DAMAGE...INCLUDING DOWNED TREES
OR LARGE LIMBS...TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE
AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS AND PICTURES CAN ALSO BE
SHARED ON THE NATIONAL WEATHER SERVICE BLACKSBURG FACEBOOK PAGE AND
ON TWITTER.

&&

LAT...LON 3611 8063 3626 8048 3626 8047 3622 8043
      3621 8045 3617 8044 3614 8044 3612 8046
      3612 8049 3611 8051 3608 8051 3605 8050
TIME...MOT...LOC 1801Z 229DEG 29KT 3603 8054 

HAIL...1.00IN
WIND...60MPH
 
$$

JH
181 
WWUS51 KRNK 241810
SVSRNK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
110 PM EST WED FEB 24 2016

NCC197-241820-
/O.EXP.KRNK.SV.W.0004.000000T0000Z-160224T1815Z/
YADKIN NC-
110 PM EST WED FEB 24 2016

...THE SEVERE THUNDERSTORM WARNING FOR 
SOUTHEASTERN YADKIN COUNTY WILL EXPIRE AT 115 PM EST...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF HAIL OF ANY
SIZE...AS WELL AS ANY REPORTS OF WIND DAMAGE...INCLUDING DOWNED TREES
OR LARGE LIMBS...TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE
AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS AND PICTURES CAN ALSO BE
SHARED ON THE NATIONAL WEATHER SERVICE BLACKSBURG FACEBOOK PAGE AND
ON TWITTER.

LAT...LON 3611 8063 3626 8048 3626 8047 3622 8043
      3621 8045 3617 8044 3614 8044 3612 8046
      3612 8049 3611 8051 3608 8051 3605 8050
TIME...MOT...LOC 1808Z 229DEG 29KT 3603 8054 

$$

JH

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 24, 10:42 AM ESTAreal Flood AdvisoryRNKWatauga6 hr
Feb 24, 11:15 AM ESTSpecial Weather StatementRNKWilkes60 min
Feb 24, 11:34 AM ESTSpecial Weather StatementRNKAlleghany, Surry56 min
Feb 24, 12:02 PM ESTSevere Thunderstorm WarningRNKWilkes, Yadkin24 min
Feb 24, 12:19 PM ESTSevere Thunderstorm WarningRNKStokes, Surry, Yadkin41 min
Feb 24, 1:12 PM ESTSpecial Weather StatementRNKStokes33 min
Feb 24, 1:21 PM ESTSevere Thunderstorm WarningRNKRockingham, Stokes39 min
Feb 24, 1:37 PM ESTSevere Thunderstorm WarningRNKRockingham53 min
Feb 24, 1:55 PM ESTSevere Thunderstorm WarningRNKCaswell, Rockingham65 min
Feb 24, 2:26 PM ESTSevere Thunderstorm WarningRNKCaswell, Rockingham64 min
Feb 24, 2:54 PM ESTTornado WarningRNKCaswell36 min
Feb 24, 3:21 PM ESTSevere Thunderstorm WarningRNKCaswell, Rockingham54 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2016Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.